INGREDIENTS
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For the Muffins: 7 tablespoons unsalted butter 1 1/2 cups all-purpose flour 3/4 cup sugar 1 1/2 teaspoons baking powder 3/4 teaspoon salt 1/3 cup whole milk 1 large egg 1 large egg yolk 1 tablespoon maple syrup 1 teaspoon vanilla extract For the Mapl