01 - Preheat oven to 350°F. Grease and line a 9x13 inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a medium bowl, whisk together flour, baking powder, and salt until well combined.
03 - In a large bowl, beat butter and sugar with an electric mixer until light and fluffy, about 3 minutes. Add eggs one at a time, beating well after each addition. Mix in vanilla extract and almond extract.
04 - Gradually add dry ingredients to the wet mixture, mixing on low speed until just combined. Avoid overmixing to prevent tough bars.
05 - Spread dough evenly in the prepared pan, using a spatula to create a smooth surface. Bake for 18-20 minutes until edges are barely golden and center is set. Cool completely in the pan.
06 - Beat butter until creamy. Add powdered sugar, vanilla, and 2 tablespoons milk. Beat until smooth and fluffy, adding more milk if needed for spreadable consistency. Divide and tint with pastel food coloring if desired.
07 - Spread frosting evenly over cooled cookie base. Decorate with Easter sprinkles. Lift bars from pan using parchment overhang and cut into 16 squares.