Preheat the oven to 375°F and prepare 8 muffin tins by either lining them or spraying with nonstick spray.
Open up your can of biscuits and cut each into 6 pieces. The best way is to first cut them in half, and then cut each half into 3 equal sized triangles.
Combine the white sugar, cinnamon, ginger, allspice, cardamom, and pepper into a large gallon-sized ziploc bag. Add the biscuit pieces, seal up the bag, and shake to coat all the pieces evenly with the chai spiced sugar mixture. You could also do this in a large bowl and use your hands to toss in the biscuit pieces.
Place 6 biscuit pieces into each prepared muffin tin.
Make a caramel sauce for the muffins. In a small pot, add the butter, sugar, and water and melt them all together on medium heat until gently bubbling. Continue to cook, stirring occasionally until the sugar is completely dissolved. Then, remove it from the heat and stir in the vanilla.
Spoon 2 tsp of the caramel sauce on top of each muffin. You may have some leftover, which you could save for drizzling on top later.
Bake them for 12-15 minutes, or until the tops are just golden brown. Then, remove them from the oven and let cool for 5 minutes to set before removing them from the pan.