Caribbean muffin top banana cookies

Ingredients

• 2-1/2 cups all-purpose flour
• 3/4 teaspoon double-acting baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon salt
• 1-1/2 sticks unsalted butter
• 1 cup firmly packed light brown sugar
• 1/2 cup granulated sugar
• 1 shot Cointreau
• 3 large eggs
• 1 tablespoon freshly grated lemon zest
• 2 mashed ripe bananas
• 1/2 cup drained of juice
• 3 tablespoons sour cream
• 3/4 cup chopped walnuts
• 1 cup sweetened flaked coconut