Anne Shirley’s Liniment Cake (Raspberry Layer Cake)

Ingredients

• 3 cups all-purpose flour
• 1 tablespoon baking powder
• 1/2 teaspoon salt
• 1/4 teaspoon baking soda
• 1 1/2 cups (3 sticks) butter, softened
• 1 1/4 cups granulated sugar
• 1/2 cup vegetable oil
• 2/3 cups milk
• 1 1/2 teaspoons vanilla extract
• 4 eggs
• 1 1/2 cups seedless raspberry jam
• 1/2 cup (1 stick) butter
• 1/2 cup raspberry jam
• 1 pound or 3 3/4 to 4 cups confectioners powdered sugar
• 2 teaspoons water
• Fresh raspberries (garnish)