I tried a new recipe last night to use up my ham hocks. You took a 16 oz bag of dried B.E.P. and cooked them in 4 cups of water along with ham hocks, onions, jalapeño peppers. The recipe called for them to be cooked about an hour or until soft. When I tried my peas they were soft but they are also gritty. What did I do wrong? Are they salvageable?