Here is a recipe for it. It can also be milk or dark chocolate and it's called Bark supposedly because the almonds in it make it look like tree bark ...LOL...
Almond Bark
1 cup whole blanched almonds
1 teaspoon butter or margarine
1 pound white chocolate
Method
Put almonds and butter in a 9 inch micro proof pie plate.
Cook on HI for 4 to 5 1/2 minutes, or until toasted.
Stir twice during cooking. Set aside.
Put white chocolate in large micro proof mixing bowl and cook on HI
for 2 1/2 to 3 minutes, or until softened.
Stir in almonds and pour onto waxed paper lined baking sheets.
Spread to desired thickness and refrigerate until set.
Yields: 1 1/2 pounds