Set the oven rack to the 2nd position and preheat the oven to 350°F (180°C).
Spray an 11x4 baking loaf pan (you can also use a 9x5 baking loaf pan) with oil or butter, or line it with parchment paper if you prefer, and set aside.
Make the bread: In a Medium Mixing bowl, Whisk together the wet ingredients (eggs, naturel yogurt, sugar, butter, vanilla sugar, milk, salt and lemon juice) until combined. Make sure there are no sugar lumps remaining.
Add the dry ingredients (all-purpose flour, baking powder and baking soda) into the wet ingredients and gently mix with spatula until there are no more lumps on your mixture. Then add 1 1/4 cups of ground pistachios and mix. Avoid over-mixing. (3 circular motions are enough). Then pour the mixture into prepared loaf pan.
Top the bread: Sprinkle the rest of ground pistachios over the top.
Bake the bread: Bake for 40-45 minute, at 350°F (180°C).
Remove the bread from oven and let it cool in the pan for 10 minutes, then remove it from the pan and carefully place on a wire rack to cool completely before slicing.
Store pistachio bread in an airtight container at room temperature for 3 days or week in the refrigerator.