300 gr. of "chufas" (also known as "tiger nuts")
250 gr. of sugar
1`5 l. of water
1 lemon peel
Put the "chufas" in a bowl of water for 12 hours. In another bowl put the lemon peel, the sugar, the water and the drained "chufas". Triturate all with the electric whisk and put the bowl in the refrigerator for 2-3 hours, then, drain all with a thin sieve, and you have the "horchata" ready.