Easy Pistachio Pudding Cookies

Ingredients

• 1 2/3 cups all-purpose flour (stir, spoon & level)
• 1 small (3.4 oz) box instant pistachio pudding mix (dry, not prepared)
• 1 tsp baking soda
• 1 tsp salt
• 3/4 cup (1 1/2 sticks) unsalted butter, room temperature
• 3/4 cup granulated sugar
• 1/4 cup light brown sugar, gently packed
• 1 large egg
• 1 tsp clear vanilla extract (or 1/2 tsp almond extract)
• 1 drop green food coloring, optional
• 1 cup white chocolate chips
• 1/2 cup shelled pistachios, chopped