Add blueberries, lemon zest, lemon juice, balsamic vinegar, maple syrup, thyme leaves, and ¼ teaspoon salt to a medium pot. Simmer over medium to medium-high heat for 8-10 minutes, stirring often, until thick and jammy but still a little runny. It'll continue to thicken as it cools. Option to mash any berries that haven't popped. Season to taste.
Take jam off the heat and let cool at room temp or in the fridge for at least 10-15 minutes.
Lay out a large piece of plastic wrap and start to form the Lil' Moo Original into a log shape. Refrigerate the Lil' Moo log for a couple of hours to ensure that it keeps its shape.
Once the Lil' Moo log has hardened and is keeping it's shape, place it on a serving platter. Then, pour your blueberry jam over the top of the log and serve chilled.
