Ingredients
- 1 cup all-purpose flour
- 1/2 tsp baking powder
- 1/2 tsp ground cinnamon
- 1/4 tsp kosher salt
- 1/2 cup unsalted butter, melted and slightly cooled
- 1 cup brown sugar (light or dark)
- 1 large egg
- 1 tsp pure vanilla extract
- 1 1/2 cups old-fashioned/rolled oats
- 1 cup semi-sweet chocolate chips
- 1/2 cup M&Ms (optional)
Instructions
- Preheat oven to 350°F (177°C). Line an 8×8 metal baking pan with parchment paper or lightly grease.
- In a medium bowl, whisk together flour, baking powder, cinnamon, and salt.
- In a large bowl, whisk melted butter and brown sugar until combined. Stir in egg and vanilla.
- Add dry ingredients to wet and stir until just combined. Do not overmix.
- Fold in oats, chocolate chips, and M&Ms.
- Spread batter evenly into prepared pan. Sprinkle extra mix-ins on top if desired.
- Bake for 24–28 minutes, until edges are golden and center is set. For softer bars, bake closer to 24 minutes.
- Cool completely, then lift from pan, slice into 16 bars, and serve.
Notes
- Use butterscotch chips, Reese’s pieces, or holiday M&Ms for fun variations.
- Add toasted nuts or raisins for extra flavor and texture.
- To make gluten-free, substitute flour with a 1:1 gluten-free blend and use certified gluten-free oats.
- Double the recipe in a 9×13 pan and bake 3–5 minutes longer.
- Prep Time: 20 minutes
- Cook Time: 24–28 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 bar
- Calories: 210
- Sugar: 16g
- Sodium: 90mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 25mg
