Lemon Herb Butter Steak with Mashed Potatoes - My Home Made Recipe

Ingredients

• 1/2 cup (113 g) unsalted butter, softened
• 1 teaspoon finely grated lemon zest
• 1 teaspoon fresh lemon juice
• 2 tablespoons finely chopped fresh parsley
• 1 tablespoon finely chopped fresh thyme
• 1 clove garlic, minced
• 1/4 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 2 ribeye steaks, about 1 inch thick, 10-12 oz (280-340 g) each
• 1 1/2 teaspoons kosher salt
• 1 teaspoon freshly ground black pepper
• 2 tablespoons olive oil
• 2 lb (900 g) russet potatoes, peeled and cut into chunks
• 1 tablespoon kosher salt for the boiling water, plus more to taste
• 1/2 cup (120 ml) whole milk or heavy cream, warmed
• 4 tablespoons (57 g) unsalted butter
• Black pepper, to taste