Make the Huckleberry Compote: Add berries, sugar, lemon juice, zest, vanilla (if using), and salt to a small saucepan. Cook over medium heat, stirring often, until the berries release juices and the mixture simmers, about 5 to 7 minutes.
If you want it thicker, stir in the cornstarch slurry and simmer 1 to 2 more minutes until glossy. Remove from heat; it will thicken as it cools.
Pancakes with Compote: Heat a nonstick skillet over medium and lightly coat with butter or oil. Cook pancakes as usual.
Serve warm pancakes topped with a generous spoonful of huckleberry compote, a pat of butter, and a drizzle of maple syrup.
Huckleberry Crumble: Heat oven to 350°F (175°C). Toss berries with sugar, lemon juice, and cornstarch; spread in an 8-inch baking dish. In a bowl, mix oats, flour, brown sugar, cinnamon, and salt.
Cut in butter with your fingers until clumpy. Sprinkle over berries. Bake 30 to 35 minutes, until the top is golden and juices bubble at the edges.
Cool 10 minutes before serving.
Huckleberry Swirl Yogurt: Spoon yogurt into bowls. Swirl in cooled compote with a spoon so you get ribbons of berry. Top with granola or nuts and a light drizzle of honey if you like a sweeter bowl.