Why does buttermilk syrup foam up so much?
Because of the baking soda. When it hits the acidic buttermilk, it bubbles aggressively and expands fast. Use a saucepan that is at least 3 to 4 quarts so you do not end up cleaning your stovetop instead of eating breakfast.
Is buttermilk syrup the same as maple syrup?
Nope. Maple syrup is straight-up maple. Buttermilk syrup is a cooked butter-and-sugar syrup with buttermilk and vanilla, kind of like a quick caramel sauce with a tangy edge.
Can I make it without corn syrup?
Yes. The corn syrup helps keep the texture smooth and discourages sugar crystals, but you can replace it with honey or golden syrup (same amount). If you skip it entirely, the syrup can crystallize more easily as it cools. It will still taste great.
Can I use powdered buttermilk?
You can, as long as you reconstitute it according to the package directions to equal 1 cup prepared buttermilk. Real buttermilk gives the best flavor, but powdered works in a pinch.
My syrup looks separated. Did I mess it up?
Probably not. Separation can happen after chilling. Reheat gently and whisk or stir until it comes back together. If it still looks stubborn, add a splash of buttermilk and stir.
Can I make it thicker or thinner?
Thicker: simmer 1 to 2 minutes longer. Thinner: stir in a tablespoon of buttermilk or water after reheating. Remember it thickens as it cools.
Why does my syrup taste a little soapy or bitter?
That is usually too much baking soda (or baking soda that was not measured carefully). Stick to 1 teaspoon and use fresh baking soda. The baking soda neutralizes some of the buttermilk tang, so extra can push the flavor in a weird direction.
Help, I scorched it. Can I save it?
If it just smells a tiny bit toasty, you might be okay. If it tastes burnt, it is hard to un-burn sugar, sadly. Next time, use a heavy-bottom pot, keep it at a gentle simmer, and whisk often, especially around the edges.
What kind of buttermilk works best?
Regular cultured buttermilk is perfect. Low-fat works too, but full-fat tastes a little richer and rounder.