Preheat the oven to 375°F (190°C). Butter and flour a 9x5x3-inch (23x12x7 cm) loaf pan (or a bundt pan, if preferred).
In the bowl of an electric mixer, combine the eggs, sugar, and salt. Beat until the mixture is thick and a light lemon color.
In another bowl, sift together the flour and baking powder. Gently stir the flour mixture into the egg and sugar mixture a little at a time, blending well.
Blend in the cream and melted butter, then stir in the lemon zest and lemon juice.
Pour the batter into the prepared loaf pan. Bake for 40-45 minutes, or until golden brown around the edges. Remove from the oven and let cool for about 5 minutes in the pan, then turn the cake out onto a rack to cool completely.
Notes
I used a swirl bundt pan, the baking time slightly longer than stated above. Serve the cake with berries, a simple fruit sauce or lemon sauce.