Line an 18 x 13 sheet pan with parchment or heavy aluminum foil. Place biscuits on a lined sheet pan in a single layer. Sprinkle with an even layer of slivered almonds. Set aside.
Heat a small pot over medium heat, add butter and brown sugar, and bring to a boil. Stirring the bubbling sugar mixture for two minutes.
Pour toffee sauce over biscuits in a thin, even layer.
Place the pan in the oven and bake for 5-7 minutes until the sauce is bubbling all over.
Remove from oven, allow to cool slightly before cutting into bite-sized pieces. Alternatively, leave biscuits whole for a two-bite treat.