I am looking for a recipe for red pepper jelly/jam made with red pepper flakes not the actual peppers. I bought some at a farmers market last summer and it was great! not too hot and not too sweet. I hope someone can help me!

Green or Red Pepper Jelly

3 lg. green or red peppers
6 c. sugar
1 1/2 c. vinegar
1 1/2 tsp cayenne pepper
1 tsp green or red food coloring
1 bottle Certo

Grind peppers and save juice. Boil for 10 minutes with sugar and vinegar. Add cayenne pepper, coloring and liquid Certo. Stir well. Pour into jars and seal.

I went to the internet and pumped in red pepper jelly. many sites popped up. This is was the only recipe I found with cayenne pepper in it, but I only looked for a few minutes. I must confess ignorance about Certo. Is it liquid pectin? Anyone out there know? It sounds good, maybe I will give it a try. If I can figure out what Certo is, LOL!