1 cup (2 sticks) unsalted butter, softened
1/2 cup sugar
1/2 cup firmly packed light-brown sugar
2 large eggs
1 teaspoon pure vanilla extract
2 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
2 cups old-fashioned rolled oats
1 cup milk chocolate chips
1 cup coarsely chopped dark cooking chocolate
1 cup mini M&Ms
- Preheat oven to 175 degrees Celsius. Line baking sheets with baking paper.
- In a large bowl with a wooden spoon or hand mixer, beat butter, sugar and brown sugar together until smooth and creamy, about 2 minutes. Beat in eggs, one at a time, until well blended. Stir in vanilla.
- In a medium bowl, sift together flour, baking soda, baking powder and salt. Gradually stir into butter mixture until well blended. Add oats, M&Ms and chocolate
- Drop batter by heaping tablespoons trays about 2 inches apart. Press tops down with the bottom of a glass to flatten cookies evenly. Bake until golden, about 16 to 18 minutes. (Mine needed only 9 minutes) Cool on pan for 2 minutes. Remove from pan, and finish cooling completely on wire rack.