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Banana-Applesauce Collagen Muffins

12-cup muffin pan · Bake 350°F, 20–24 min · 8-minute batter rest

Batch
0/0 done

Twelve gluten-free banana muffins built on 285 g of very ripe banana and 55 g applesauce, with collagen peptides for protein. The batter rests 8 minutes before the melted fat goes in — that rest is what keeps a gluten-free, collagen-containing crumb from turning rubbery.

Ingredients, by bowl
Bowl 1 · Wet — add in this order
  • 285 g very ripe banana
  • 55 g unsweetened applesauce
  • 100 g egg (about 2 large eggs without shells)
  • 75 g maple syrup
  • 10 g lemon juice
  • 8 g vanilla extract
Bowl 2 · Dry — add in this order
  • 225 g Bob's Red Mill Gluten-Free 1-to-1 Baking Flour
  • 30 g collagen peptides
  • 9 g baking powder
  • 1 g baking soda
  • 3 g fine salt
Bowl 3 · Fat — after the rest
  • 65 g butter or coconut oil, melted

Hold the melted fat back until after the 8-minute rest — the flour and collagen need that time to absorb moisture first.

Method
  1. Heat the oven to 350°F. Grease a 12-cup standard muffin pan or line it with paper liners.
  2. Melt the 65 g butter or coconut oil and set it aside. Keep it liquid and warm, but not hot — and do not add it to the batter yet.
  3. For the best texture, let the eggs, banana, and applesauce come close to room temperature before mixing.
  4. Bowl 1 — wet: mash the 285 g very ripe banana until mostly smooth; a few very small pieces are fine. Mix in the 55 g applesauce. Add the 100 g egg and whisk until fully incorporated. Add the 75 g maple syrup, 10 g lemon juice, and 8 g vanilla, and whisk until the mixture is smooth and evenly combined.
  5. Bowl 2 — dry: whisk the 225 g gluten-free flour, 30 g collagen peptides, 9 g baking powder, 1 g baking soda, and 3 g salt thoroughly for about 30 seconds. Break apart any visible collagen, baking-powder, or baking-soda clumps — the leavening has to be evenly distributed before it meets the wet ingredients.
  6. Add about one-third of the dry mixture to Bowl 1 and fold gently with a spatula until mostly incorporated. Add another third and fold again. Add the remaining third and fold only until no pockets of dry flour remain. The batter will be thick — don't try to make it perfectly smooth, and don't mix vigorously.
  7. Rest the batter for exactly 8 minutes so the gluten-free flour and collagen can absorb moisture before the fat is added. Don't rest it much longer — the lemon juice and leavening have already begun reacting.
  8. Bowl 3 — fat: in a small bowl, stir 50–60 g of the rested batter into the 65 g melted butter or coconut oil until it becomes creamy and mostly uniform. Pour that mixture back into the main bowl and fold gently, using as few strokes as possible, until the fat is evenly incorporated and no obvious oily streaks remain. The batter may look slightly slippery at first; keep folding gently until it becomes cohesive again.
  9. Immediately divide the batter among the 12 cups — about 68 g each, roughly three-quarters full. Gently smooth any sharply pointed peaks, but don't press the batter down firmly. Put the pan in the oven right away.
  10. Bake at 350°F for 20–24 minutes, checking at 20. They're done when the tops are lightly golden, the centers spring back when lightly pressed, and a toothpick comes out without wet batter — a few moist crumbs are fine. Internal temperature in the center is about 200–205°F on an instant-read thermometer. Don't bake until the toothpick is completely dry; banana, applesauce, collagen, and gluten-free flour all turn dry or rubbery when overbaked.
  11. Cool the muffins in the pan 8 minutes, then carefully remove them to a cooling rack and let them cool at least 15–20 minutes before eating. The interior keeps setting as they cool.
Why the fat goes in last

The 8-minute rest lets the gluten-free flour and the collagen hydrate while the batter is still lean — fat added earlier coats the starch and blocks that. Tempering the melted fat with 50–60 g of batter first means it emulsifies in a handful of strokes instead of needing the vigorous mixing that would toughen the crumb. The rest is capped at 8 minutes because the 10 g lemon juice has already started reacting with the baking soda.

Doneness
  • Tops lightly golden.
  • Centers spring back when lightly pressed.
  • Toothpick comes out with no wet batter — a few moist crumbs are fine.
  • About 200–205°F in the center on an instant-read thermometer.
Storage
  • Room temperature, sealed container: up to 1 day.
  • Refrigerated: 4–5 days.
  • Freeze individually for longer storage.
  • Warm a refrigerated muffin briefly before serving — the texture comes back.