Sift flour, baking powder, soda, and salt in a medium basin. Set aside.Large bowl. Stir together melted butter (cool to room temperature), sugar, vanilla, egg, and a few drops of green food coloring.
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Whisk until the mixture is smooth.The dry ingredients should be stirred in with a rubber spatula until they are just barely combined.
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Preheat oven to 350°F and line 2 cookie sheets with parchment. Preheat the oven while the dough rests. This limits overgrowth. Chop Andes mints while waiting.
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Scoop dough with a little 1 tablespoon cookie scoop. With your thumb, make a hole in the cookie dough ball in the scoop. Cover with chopped mints and cookie dough. Use scooped dough to coat the cookie.
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Cover 12 cookie dough balls with green sugar and set on the cookie sheet.Bake 8-10 minutes. Sprinkle heart when heated. Cool it fully on a wire rack.
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