Method:
Season chicken all over with 1 tablespoon paprika and 1 teaspoon salt. Melt 1/2 tablespoon butter with the oil in a large skillet over medium-high heat, add chicken and cook, flipping once, until golden brown, 10 to 12 minutes; transfer to a plate. Add onion and remaining 1/2 tablespoon paprika, reduce heat to medium and cook until just tender, about 5 minutes. Whisk in broth, scraping up any browned bits, increase heat to medium-high and boil until reduced by half, 3 to 4 minutes. Whisk in tomatoes and 1/2 teaspoon salt.
Return chicken and its juices to skillet. Bring to a boil, cover, reduce heat to medium-low and simmer until cooked through, about 15 minutes. Meanwhile, smash peas with remaining 1 tablespoon butter and 1/2 teaspoon salt in a medium pot and heat over medium heat until hot throughout. Transfer peas to serving plate(s); remove chicken from sauce and arrange over peas. Whisk yogurt into sauce and simmer gently, uncovered, 5 minutes more. Spoon sauce over chicken and serve.