<p>In a bowl, mix the sugar with the lemon zest until the sugar takes on a pale yellow hue and releases an intense fragrance.</p><div><p dir="auto" class="whitespace-break-spaces">In the bowl of a stand mixer, mix the flour, baking soda, baking powder, flavored sugar, and salt. Knead briefly to blend.</p> <p dir="auto" class="whitespace-break-spaces">Add the <span data-question="Why is it important to use cold butter in this recipe?" class="followup-block followup-block-hidden cursor-pointer outline-none static inline group-hover/message:[--hover-opacity:1]" type="button" aria-haspopup="dialog" aria-expanded="false" aria-controls="radix-_r_so_" data-state="closed" tabindex="0" style="--underline-opacity: 0.4; --underline-height: 8%; --underline-saturation: 1;">cold butter cut into cubes</span>. Crumble the mixture until you obtain a <span data-question="How to visually recognize an ideal crumbly texture?" class="followup-block followup-block-hidden cursor-pointer outline-none static inline group-hover/message:[--hover-opacity:1]" type="button" aria-haspopup="dialog" aria-expanded="false" aria-controls="radix-_r_sp_" data-state="closed" tabindex="0" style="--underline-opacity: 0.6; --underline-height: 38%; --underline-saturation: 1;">granular and homogeneous texture.</span></p><p dir="auto" class="whitespace-break-spaces"><span data-question="How to visually recognize an ideal crumbly texture?" class="followup-block followup-block-hidden cursor-pointer outline-none static inline group-hover/message:[--hover-opacity:1]" type="button" aria-haspopup="dialog" aria-expanded="false" aria-controls="radix-_r_sp_" data-state="closed" tabindex="0" style="--underline-opacity: 0.6; --underline-height: 38%; --underline-saturation: 1;"></span></p><p dir="auto" class="whitespace-break-spaces">Incorporate the eggs one by one, then the yogurt. Knead until obtaining a smooth and homogeneous dough.</p><p dir="auto" class="whitespace-break-spaces"><span data-question="How to visually recognize an ideal crumbly texture?" class="followup-block followup-block-hidden cursor-pointer outline-none static inline group-hover/message:[--hover-opacity:1]" type="button" aria-haspopup="dialog" aria-expanded="false" aria-controls="radix-_r_sp_" data-state="closed" tabindex="0" style="--underline-opacity: 0.6; --underline-height: 38%; --underline-saturation: 1;"> </span></p><p dir="auto" class="whitespace-break-spaces">Pour the batter into a previously buttered (and optionally floured to facilitate unmolding) mold. Bake until the cake is golden and a knife comes out clean.</span></p></div>