In a separate medium bowl, whisk together the yogurt, egg, and milk. Add the dry ingredients to the wet ingredients in increments, whisking until smooth. Whisk in the raisins. Cover with plastic wrap and let the batter rest in the refrigerator for at least 15 minutes or up to overnight.
When ready to make the pancakes, in a nonstick skillet, melt 2 teaspoons butter over medium-high heat, tilting the pan so the butter is evenly distributed over the surface.
Pour the batter into the skillet, a ladleful at a time, to form pancakes that are about 4 inches (10 cm) in diameter. Don’t overcrowd the skillet. Flip the pancakes when the underside is golden brown and continue to cook until both sides are golden. Transfer to a plate, dabbing each pancake with a little butter as you stack them. Continue until the all the batter has been used, adding butter to the skillet between batches as needed.
Try topping these fluffy pancakes with a dollop of Greek yogurt, a drizzle of honey, and some fresh fruit or Greek spoon sweet preserves, such as bergamot or lemon rind, which go beautifully with yogurt.