Postpartum · Snack
Banana, Oat & Chocolate Chip Snack Cookies
Soft banana oat cookies with chocolate chips - barely baking, entirely worth it, freezer-approved.
A one-bowl cookie you can mix during one nap and eat one-handed during the next. Ripe bananas do the sweetening, so these sit closer to breakfast than dessert, and the dough asks for no equipment beyond a fork. They are built for the feed-snack-repeat rhythm of the newborn weeks, when hunger arrives sideways and often.

12 min prep 路 25 min hands-off
Ingredients
- 3very ripe bananas, mashed
- 180 grolled oats
- 2 tbsppeanut butter
- 1 tbspground flaxseed
- 1 tspcinnamon
- 50 gdark chocolate chips
- a pinch ofsalt
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Per serving (approx.): 330 calories · 7 g protein · 44 g carbs · 14 g fat · 6 g fiber
Method
Before you start. Heat the oven to 350掳F (180掳C) and line a baking sheet with parchment.
- Mash. Mash the very ripe bananas in a large bowl with a fork until almost smooth, with only a few small lumps left. Stir in the peanut butter, ground flaxseed, cinnamon and salt.
- Dough. Fold in the oats and chocolate chips until you have a thick, sticky dough that holds together on a spoon. Rest it for 5 minutes so the oats soften and soak up the banana.
- Shape. Drop heaped tablespoons of dough onto the lined sheet, spacing them a couple of inches apart - about 12, scaling with your servings - and flatten each mound gently, since they will not spread.
- Bake. Bake for 14 to 16 minutes, until the edges are golden and the tops feel set rather than wet when touched. Cool on the sheet for 5 minutes before moving them.
- Store. Once fully cool, keep the cookies in an airtight container for 3 days, or freeze them in a bag and let one thaw at room temperature for about 20 minutes.
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Is this safe while breastfeeding?
Yes - every ingredient here is routine while breastfeeding, and the peanut butter deserves a direct word: avoiding peanuts while nursing is outdated advice, and current guidance says they are fine unless you are allergic yourself. One honest note on the oats and flax: no food has been shown in trials to raise milk supply, which runs on how often the baby feeds - so treat these as a solid snack for hungry weeks, not a lever. If they pair with your coffee, guidance caps caffeine at 200 mg a day while breastfeeding, though some US guidance allows about 300 mg.
Substitutions & allergens
- Use certified gluten-free oats - removes gluten, which in this recipe comes only from the oats.
- Swap the peanut butter for sunflower seed butter or tahini - removes peanuts without losing the richness.
- Swap the chocolate chips for raisins or chopped dates - a fully fruit-sweetened version.
- No flaxseed? Chia works the same way here, or leave it out - the bananas hold the dough together fine.
Storage & reheating
These are soft, banana-moist cookies, so treat them like leftovers rather than cookies: once cool, into an airtight container in the fridge within 1-2 hours of baking, and eaten within 48 hours, per FSA chilling guidance. The freezer is the better long game: freeze on baking day, then move cookies to the fridge to defrost and eat within 24 hours of thawing. There is no reheating involved - they are eaten as they are, one-handed by design.
Checked against the public guidance we follow - see our sources & editorial standards.
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