In the meantime, warmth remaining 2 tsp. oil in a small saucepan over medium. Add ginger and turmeric and prepare dinner, stirring, till aromatic and ginger is barely softened, about 1 minute. Add honey, butter, purple pepper flakes (add extra for additional warmth), and 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt and whisk till emulsified, about 1 minute. Enhance warmth to medium-high, whisk in lemon juice (combination will bubble up fairly a bit, then settle). Prepare dinner, whisking continuously, till thickened sufficient to coat the again of a spoon, about 2 minutes. Take away sauce from warmth.
