Grease the bottoms of three matching 13-in x 9-in x 2-in baking pans (or reuse 1 pan). Line the pans with waxed paper; grease the paper.

Place almond paste in a large mixing bowl; break up with a fork. Cream with butter, sugar and egg yolks until light, fluffy and smooth. Stir in flour.

In another mixing bowl, beat egg whites until soft peaks form. Fold into dough, mixing until thoroughly blended. Divide dough into three portions (about 1-1/3 cups each). Color one portion with red food coloring and one with green; leave the remaining portion uncolored. Spread each portion into the prepared pans.

Bake at 350 F for 10-12 minutes or until edges are light golden brown. Invert onto wire racks; remove waxed paper. Place another wire rack on top and turn over. Cool completely.

Place green layer on a large piece of plastic wrap. Spread evenly with raspberry jam. Top with uncolored layer and spread with apricot jam. Top with pink layer. Bring plastic wrap over layers. Slide onto a cookie sheet and set a cutting board or heavy, flat pan on top to compress layers. Refrigerate overnight. (tosher note: I use a cutting board and place bags of flour, sugar and sometimes barbell weights on it to really compress the layers.)

The next day, melt chocolate in a double boiler. Spread over top layer; allow to harden. With a sharp knife, trim edges. Cut into 1/2-in. Strips across the widgh; then cut each strip into 4-5 pieces. Store in airtight containers.

them enough time to "mellow", leaving them moist and full of almond flavor.