Dissolve rice flour in 1 cup milk, keep aside. Put remaining milk to heat, bring to a boil. Simmer for 8-10 minutes, add sugar, boil till dissolved. Gradually add rice flour mixture, while stirring continuously. Bring back to a boil, simmer for 5-7 minutes, or till thick. Cool to room temperature, stir in vanilla essence. Add wheat flakes, oats and almonds, stirring gently. Pour into individual bowls, refrigerate till set well. This should take about 3-4 hours. Serve chilled topped with a few wheat flakes and almonds.