In a small bowl, whisk together the Greek yogurt, Dijon mustard, lemon juice, turmeric, cayenne, sea salt, and black pepper until smooth.
Gently warm the yogurt sauce in a small saucepan over very low heat just until lukewarm, being careful not to boil or curdle.
Heat a skillet over medium-high heat and sear the Canadian bacon slices for 1-2 minutes per side until lightly browned.
Bring a medium pot of water to a gentle simmer and add the white vinegar to help the egg whites set.
Crack each egg into a small ramekin, swirl the simmering water to create a gentle vortex, and slide the eggs into the water to poach for 3 minutes.
Toast the English muffin halves until golden brown and place them on a serving plate.
Layer the seared Canadian bacon onto the toasted muffins, top with a poached egg, and drizzle with generous spoonfuls of the zesty hollandaise.
Garnish with freshly chopped chives and serve immediately.