MELT THE CHOCOLÁTE WITH THE BUTTER IN THE MICROWÁVE, WÁIT FOR IT TO WÁRM, ÁDD THE TWO EGGS ÁND MIX WELL, ÁDD THE VÁNILLÁ ESSENCE, THE COCOÁ POWDER ÁND THE RICE FLOUR, FINÁLLY ÁDD THE CRUSHED CHOCOLÁTE, GREÁSE Á PÁN WITH BUTTER ÁND COCOÁ POWDER, POUR THE MIXTURE ÁND BÁKE IN PREHEÁTED OVEN ÁT 200 DEGREES FOR 25 MINUTES.