I start by placing the butter spread and light brown sugar into the saucepan. Over medium heat, I stir constantly until the sugar dissolves completely and the mixture is smooth. That step is important so there are no grainy bits in the sauce.
Once the sugar and butter are well-blended, I remove the pan from heat and pour in the hot sauce. Then I mix thoroughly. This ensures the sauce gets that sweet-heat edge without burning or over-cooking the sugar.
If I want more kick, I stir in the crushed red pepper or cayenne now. Then I transfer the sauce to a serving bowl. It’s best used right away while warm, especially if you’re coating wings—it spreads and sticks better.