Heat oven to 200 ° C. A greased baking dish. Completely cover it with a layer of biscuits. Sprinkle with almonds. Mixes the butter, vanilla and brown sugar in a pan. Let boil until mix them. Then simmer for 1 minute. Carefully pour over biscuits (hot f). Grill for 8 minutes. Leave to cool for 3-4 minutes. Put chocolate bars on the mixture of biscuit and toffee. Wait a minute and spread chocolate to cover them. When completely cool, cut into 5 cm squares or broken into pieces.