Meyer Lemon Cake with Lavender Cream

INGREDIENTS

• 1 teaspoon grated Meyer lemon zest plus 3/4 cup Meyer lemon juice
• Garnish: confectioners sugar
• 1 1/2 cups heavy cream
• 1/2 teaspoon salt
• 1/2 tablespoon dried lavender blossoms
• 1 tablespoon unsalted butter
• 3/4 cup sugar, divided
• 1 large egg yolk
• 3/4 cup extra-virgin olive oil
• 1/2 cup plus 1 tablespoon sugar
• 1 tablespoon grated Meyer plus 3 tablespoons Meyer lemon juice (see Cooks' note, below)
• 3 tablespoons mild honey
• 2 tablespoons unsalted butter, melted, for brushing pan
• 1 cup cake flour (not self-rising)
• 5 large eggs, separated
• 3 tablespoons all-purpose flour