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4 Ingredient Peanut Butter Banana Oatmeal Cookies (3 Ways!)

baby peanut butter banana oatmeal cookie drizzled with peanut butter with banana slices next to it.

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With only 4 ingredients and no added sugar, these peanut butter banana oatmeal cookies are a healthy snack or breakfast for baby led weaning and toddlers. Customize them with your choice of mix-ins, and feel good about what your little one is eating! (gluten-free, dairy-free, and egg-free)

Ingredients

Units Scale
  • 1 large or 2 small very ripe bananas (3/4 cup mashed)
  • 1/4 cup natural peanut butter (the drippy kind with just peanuts and salt)
  • 1 tsp vanilla extract
  • 1 cup quick oats
  • Optional mix-ins: 1/4 cup blueberries or 1/4 cup chocolate chips (for toddlers and older)

Instructions

  1. Heat oven to 350°F. Line a baking sheet with parchment paper.
  2. In a medium bowl, mash the banana well, getting out as many lumps as possible. 
  3. Mix in the peanut butter and vanilla well. 
  4. Stir in the oats. Stir in any mix-ins, if you're using them.
  5. Scoop the dough by 3 tbsp scoops onto the baking sheet. Flatten with the back of your spoon into cookie shapes, since they will not spread while baking.
  6. Bake for 10-12 minutes. Cool on the baking sheet for a few minutes before removing or storing.

Equipment

Notes

  • The riper the banana, the sweeter the cookies will be, so go for bananas that have at least some brown spots.
  • Store cookies in the refrigerator in an airtight container for up to 5 days.
  • Note: These cookies are not sweet or crispy like a traditional cookie. They are more akin to a soft granola bar and are meant to be a healthy option for babies and toddlers.