That recipe is quite unusual in mainland France. These type of fruit-filled, cream-filled uncooked desserts involving biscuits are often called "charlotte" in French, so you could call that "charlotte à la mangue". Another option is to name it "feuilleté à la mangue", to refer to the layers of the cake.
You should must put some mango into some soda and the mango floats
A mango is 'une mangue' (fem.) in French.
A mango is 'une mangue' (fem.) in French.
(La) mangue -- "the mango (fruit)" -- and (le) manguier -- "the mango (tree)" -- are French equivalents of the English word "mango." The respective pronunciations will be "(la) mawng" and "(luh) maw-gyey" in French.
un fruit exotique (commonest term), un fruit tropical
maybe or maybe not
Float, pronounced flo-at.
avocado : un avocat (masc.) mango : une mangue (fem.) avocado:seins
French mango juice
The term is impossible. A boat cannot float clear of the water.
le jus de mangue
In French, "mango" is masculine, so it is "le mangue."