Grapefruit Greek Yogurt Cake

Bahan-bahan (1 porsi)

• 1 and 1/2 cups (190g) all-purpose flour (spooned & leveled)
• 1 and 1/2 teaspoons baking powder
• 1/2 teaspoon salt
• 3 large eggs
• 3/4 cup (180g) Greek yogurt*
• 1 cup (200g) packed light brown sugar
• 1/2 cup (120ml) vegetable or canola oil (melted + slightly cooled coconut oil works too)
• 1/4 cup (60ml) freshly squeezed grapefruit juice, strained
• 1 and 1/2 Tablespoons grapefruit zest
• 1 teaspoon pure vanilla extract
• seeds scraped from 1/2 of a vanilla bean
• 1 cup (120g) confectioners’ sugar, sifted
• 2 Tablespoons (30ml) freshly squeezed grapefruit juice, strained
• 1/4 teaspoon pure vanilla extract