Gather ingredients – almond paste, sugar, eggs, butter, and food coloring.
Step:1 Preheat your oven to 350°F (175°C).
Step:2 Cream together almond paste, sugar, and butter until smooth.
Step:3 Add eggs and blend until fully incorporated.
Step:4 Divide batter into three bowls; add food coloring to each.
Step:5 Spread each colored batter into thin layers on a baking sheet.
Step:6 Bake each layer for 10-12 minutes until set.
Step:7 Stack layers with jam between and chill.
Coat with melted chocolate, slice, and enjoy your vibrant rainbow cookies!