Ingredients

• 3/4 cup all purpose flour
• 1/2 cup white whole wheat flour
• 1 teaspoon salt
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon ground cinnamon
• 1 cup (2 sticks) unsalted butter, room temperature
• 1 cup (packed) golden brown sugar
• 3/4 cup sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 2 cups old-fashioned oats
• 1/2 cup unsweetened flaked coconut
• 2 cups trail mix, coarsely chopped

Instructions

1. Line 3 baking sheets with parchment paper. Mix first 6 ingredients in bowl. Using electric mixer, beat butter and both sugars in large bowl until fluffy. Add eggs and vanilla; beat until mixture is fluffy, 1 to 2 minutes. Reduce speed to low; beat in flour mixture until just combined. Fold in oats and coconut. Stir in trail mix.
2. Using 2-inch-diameter ice cream scoop, drop dough onto sheets, spacing about 2 inches apart. Do Ahead For ready-to-bake dough, freeze dough on sheets until firm. Transfer frozen dough to resealable plastic bags; keep frozen until ready to bake.
3. Preheat oven to 350°F. For freshly made cookie dough, bake until cookies are golden brown, about 13 minutes. (For frozen dough, arrange frozen cookies 2 inches apart on parchment lined baking sheets; bake until golden brown, about 16 minutes.) Transfer to racks to cool.