First, start by chopping your pineapple into cubes and then pulse in a food processor until finely chopped, but not pureed.
Next, transfer the pineapple to a large pot, aiming for about 4 cups.
Then, add Cowboy Candy, lemon juice, butter, red pepper flakes, and fruit pectin to the pot.
Afterwards, heat the mixture over high heat until it starts to boil, stirring frequently.
Once boiling, pour in all the sugar, stir well, and return to a rolling boil.
Subsequently, let it boil hard for 1 minute, then remove from heat.
Finally, ladle the jelly into prepared mason jars, seal, and process in a boiling water bath for 10 minutes.
Lastly, let the jars cool for 24 hours on the counter, occasionally shaking them to distribute the ingredients.