Pour the milk into a saucepan and put it in a water bath to boil. Pour the rice and cook to soften him. Add the almonds, sugar and the butter. Stir and leave to cool. Beat cream foam and add it to the mixture along with vanilla. Pour the gelatin in a small saucepan with cold water, put on low heat and stir until gelatin is dissolved. Leave to cool. Add to gelatin mixture and stir. Pour into serving bowls and leave in the refrigerator at least 2 hours. You can serve with sauce of sweet, warm with a little boiling water.