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 softened butter and granulated sugar with an electric mixer until light and fluffy, approximately 2-3 minutes.
04 - Add eggs one at a time, beating thoroughly after each addition. Mix in vanilla extract and almond extract if using.
05 - Gradually incorporate dry ingredients into the wet mixture, mixing until just combined. Avoid overmixing to maintain tender texture.
06 - Evenly spread dough in the prepared pan using a spatula for a smooth surface. Bake for 18-20 minutes until edges are barely golden and center is set.
07 - Beat butter until creamy. Blend in powdered sugar, vanilla, and 2 tablespoons milk. Adjust consistency with additional milk if needed. Divide and tint with pastel food coloring if desired.
08 - Spread frosting evenly over completely cooled cookie base. Sprinkle with festive Easter decorations while frosting is slightly tacky.
09 - Lift bars from pan using parchment overhang. Cut into 16 equal squares. Store in an airtight container at room temperature for up to 4 days or refrigerate for 1 week.