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Sending my love this year with the "Heart Shaped Sourdough Bagel".    Treat your love one to a special treat with a delicious bagel for Valentine's breakfast.   

The same recipe as Sourdough Bagel recipe I shared before.  The original recipe is adapted from "Kate-_bread" Sourdough Simit recipe . I incorporated Yudane Method into this recipe and made a Sourdough Bagel that is perfect for my taste. It is slightly chewy, soft and moist. 

Please click "Bread Making Method" to understand more details on Yudane Method.

How To Make Heart Shaped Sourdough Bagel

INGREDIENTS:

Yudane Dough:

80g bread flour (I used Japan High Gluten Flour)

80g boiling water

Main Dough:

250g bread flour (I used Japan High Gluten Flour)

140g sourdough starter (I used 2 days old discard)

All the yudane dough (above)

15g - 30g brown sugar (I used organic brown sugar)

1 1/2 tsp (8g) salt

85g - 100g water (59% - 61% total hydration) - For the bread flour I used need 100g *

15g vegetable oil (I used extra virgin olive oil)

20g  purple sweet potato powder (optional)

* Please reduce water if purple sweet potato powder is omitted.

Boiling/Scalding Water:

1 liter water

2 Tbsp brown sugar or Molasses

2 Tbsp baking soda

Topping:

White sesame seeds

Black sesame seeds

Chia seeds

Utensil:

Baking tray

6 pieces - 4.5" X 4.5" parchment papers

METHOD:

1. Yudane (Prepare 1 day or at least 4 hours in advance):  Please click here to see the diagram
1. Add bread flour in a bowl, pour the boiling water and mix well with spatula or spoon until no dry flour.
2. Cling film and use at least 4 hours later.  You can prepare a day before and place in the fridge and Take out from the fridge 30 minutes before using to return to room temperature.
2. Main Dough @ Around 6.00 pm:
1. Put all ingredients into a bowl of stand mixer.
2. Slightly combine the mixture by hand with the paddle attachment before turning on the machine so that the flour will not splash out.  Using the paddle attachment, mix for about a minute or until all incorporated. 
3. Change to hook attachment and knead for about 10 minutes or until the dough comes together and elastic.  This is low hydration recipe and the dough is slightly stiff. It is not required to check window pane stage as it is not soft sandwich loaf or buns. The whole kneading process, I stopped few times to scrape down the dough from the hook to be sure it is evenly kneaded and also to prevent the motor from overheating.
3. 1st Proofing @ Around 6.30 pm:  
1. Round up the dough and place back in the same bowl, keep it covered with clingfilm or use a lid. Let the dough proof for about 2 hours on the counter (at room temperature 27C - 28C).   The dough rose about 30 - 40% in size.
2. Transfer to fridge @ around 8.30 pm and cold retard overnight for 12 - 15 hours.
4. Shaping @ Around 10.00 am next day:
1. Remove the dough from the fridge and leave on the counter for about 30 minutes to return to room temperature.
2. Transfer the dough to a clean floured surface then divide dough into 12 equal portions (approx. 57g each). Please use a kitchen scale if you want to be exact.  Form each portion to a ball.  Rest for 15 minutes.
3. Flatten a dough ball.  Roll like a swiss roll. Then roll into a long strand (about  7 inches length)
4. Please watch the video "How To Shape Heart Bagel"  
5. Place each bagel onto parchment paper.
5. Final Proofing @ Around 11.30 am:
1. I made marks with a pencil about 0.75 cm away from the original size of the bagels.  Let them proof at a warm place until the dough rise and reach the pencil marks.   It took about 2 hours at 29C - 30C room temperature. The duration of proofing depends on your ambient temperature and starter.
6. Boiling/Scalding @ Around 1.30 pm:
1. In a sauce pan, combine the water, sugar and baking soda.  Bring to boil then turn to low heat.  Drop the bagels in and simmer each side for about 30 - 40 seconds.  I simmer one bagel at a time.  The bagel joints might split when flip the bagel.  
2. Remove the bagel with strainer ladle and place back onto the parchment paper.  Pinch to seal back the joint if it splits during scalding.  Immediately sprinkle with seeds mixture. Lightly press the seeds on the bagels.  Lift up slightly to sprinkle along the edges. 
3. Arrange and place into a tray.
7. Baking:
1. Preheat oven at 220C (top & bottom heat) or 200C (fan-forced) for 15 minutes.
2. Bake in a preheated oven for about 18 - 20 minutes, or until golden brown.
3. Remove bagel from oven and let them cool on rack.

GENERAL NOTES:

SOURDOUGH STARTER

Please click this link for "How To Make Sourdough Starter" and "Sourdough Maintenance" 

A healthy starter is very crucial as advised by Baking with Gina.   It is advisable to feed your starter regularly if you want your bread to rise nicely and to use the starter (levain) at its peak.  A starter that is fed regularly will be more active in general.  If the mother starter is not strong, the bread dough will not rise a lot even though the starter is used at its peak.  

GLUTEN DEVELOPMENT & WINDOWPANE TEST

Gluten forms when flour comes in contact with water.  Hydration of the flour causes the sticky and stretchy protein to form, giving structure to the bread.  This makes your bread trap air and rise. 

Gluten in dough can be developed by autolyse, resting, kneading or folding.

The windowpane test is used to determine whether the dough has been sufficiently kneaded.  By gently pulling the dough (or you may pinch off some dough) and trying to stretch it into a thin membrane.  If you are able to stretch the dough paper thin and translucent  without tearing, then the gluten is fully developed.  However, if you can stretch it without tearing but the membrane is not transparent, then the gluten is not yet fully developed.  

However, from my experience not all the recipe can achieve a thin and translucent window pane stage easily.   For example low hydration and low fat dough.  For such recipes, a reasonable window pane is good enough and it can be left to rest. Gluten will continue to develop while resting.  Exercising restraint to not over-knead the dough prevents the gluten from being overworked and broken.   Some of you may have experienced the dough breaking during the second proofing.  It is because the dough is over kneaded. 

The total kneading time for me is usually 15 minutes at low speeds except brioche dough with high fat percentage or dough using liquid fat which usually takes a little longer (maybe 18-20 mins).

From my experience, I found that high hydration dough with high percentage of fat will be easy to stretch and achieve a paper thin windowpane stage.

KNEADING TIME

For kneading, please regard the timing provided as an indication only. It is only meant as a guide.  Timing may differ depending on the brand of flour and electric mixer used. The protein content may vary from one brand of flour to another.

FLOUR

The right flour plays a very important role in bread making.   To achieve fluffy, soft and light bread, I used Japan High Gluten Flour in most of my bread baking.  The protein content is around  12 - 13%.

HYDRATION

The liquid measurement given is also a guide.  It is advisable to always reserve some liquid and not add it all in one go.  This would give you the opportunity to adjust if necessary. If dough is too dry, add the reserve liquid one tablespoon at a time until the right consistency.  This is because each flour absorbs water and hydrates differently. 

PROOFING

Please note that the proofing timing may also vary depending on your climate, environment, flour and your starter. 

If you are unable to judge by just looking at the dough, you can do the finger poke test:

Proofing:

1. Lightly press the side of the proved dough with your finger.  If it bounces back immediately without any indentation, it means the dough is under proved and needs more time before baking.
2. If the indentation stays and it doesn’t bounce back, it means it has been over proved.
3. If the indentation slowly bounces back and leave a small indentation, it is ready to bake. 
4. There will be a final burst of rising once the bread is placed to bake in the oven and it is called oven spring. 

BAKING TEMPERATURE AND TIME

Do also note that the baking temperature and timing provided are what works for my oven and should also be regarded as a guide only. Every oven behaves a little differently, so please adjust accordingly for your oven.