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Banana Oat Bars (4 Ingredients, No Added Sugar)

Recipe by Evelyn Marcella Rivera

Thick, chewy, naturally sweet banana oat bars made with just four simple ingredients and absolutely no added sugar. Perfect for meal prep, lunchboxes, and guilt-free snacking.


  • Total Time3 hours 15 minutes
  • Yield12 bars 1x

Ingredients

Units Scale

The Core Four

  • 2 cups Mashed Banana (about 4 large ripe bananas)
  • 3/4 cup Peanut Butter
  • 2 3/4 cups Old-Fashioned Rolled Oats
  • 1/2 cup Dark Chocolate Chips

Optional Flavor Boosters

  • 1 teaspoon Vanilla Extract
  • 1/2 cup Chopped Nuts

Protein Boost

  • 1/2 cup Hemp Seeds
  • 1/4 cup Vanilla Protein Powder

Instructions

  1. Get Your Pan Ready: Preheat your oven to 350 °F (180 °C). Line a 9-inch square baking pan with parchment paper, letting the edges hang over the sides. Lightly spray with cooking spray and set aside.
  2. Mash the Bananas: Peel the ripe bananas and mash until smooth. Pack into measuring cups to get exactly 2 cups of mashed banana.
  3. Mix Everything Together: Place the mashed bananas in a large mixing bowl. Add peanut butter, rolled oats, and chocolate chips. Stir very well until consistently combined and thick. Fold in any optional add-ins at this stage.
  4. Press Into the Pan: Pour the mixture into the prepared baking pan. Press firmly and evenly into all corners using the back of a spoon or damp hands. Sprinkle extra chocolate chips on top if desired.
  5. Bake Until Golden: Bake for 30–40 minutes at 350 °F (180 °C) until dry and golden on top and set in the center.
  6. Cool in the Pan: Let the pan cool for 15 minutes, then use the parchment paper handles to lift the slab onto a cooling rack.
  7. Cool Completely and Slice: Allow to cool completely for 2–3 hours before slicing into 12 bars. Serve with fresh fruit, yogurt, or enjoy plain.

Notes

Store in an airtight container in the refrigerator for up to 5 days or freeze for up to 3 months. For a nut-free version, substitute sunflower seed butter for peanut butter. The riper your bananas, the sweeter and more flavorful the bars will be.

  • Prep Time: 10 minutes
  • Cook Time: 35 minutes
  • Category: Breakfast, Snack
  • Cuisine: American

Nutrition

  • Calories: 220
  • Sodium: 60
  • Saturated Fat: 3
  • Protein: 7