Method

• 1.
  Preheat oven to 160°C and line two large baking trays with baking paper. Beat sugar and butter in an electric mixer until pale. Add egg and vanilla and beat until well combined. Fold in almond meal, flour, a pinch of salt and chocolate chips.
• 2.
  Divide batter among 4 bowls. Add different food colourings to each bowl and stir to combine to make separate red, yellow, green and blue cookie doughs.
• 3.
  For each cookie, combine 1 heaped tsp of each dough and gently roll into a ball, being careful not to mix the colours too much. Place on trays leaving a few centimetres between each ball and flatten slightly. Repeat to make 12 cookies. Bake, swapping trays halfway through, for 12 minutes or until just firm on the edges. Cool completely on trays before serving.