Cold coffee cake

Ingredients :

• 1 lb (453 g) Village cookies in pieces
• 1 lb (453 g)powdred sugar 
• 2 tablespoons of cocoa
• 3/4 cup (190 mL) strong liquid coffee (lukewarm)
• 1 egg yolk

Preperation :

1. Thoroughly grease an 8 x 8 Pyrex dish.
2. Mix all the ingredients well together. If the preparation is too soft, gradually add powdered sugar and mix.
3. Place in the mold. Flatten well with a spatula.
4. Refrigerate for 24 hours.
5. Cut into squares and place in an airtight container.