Piquant
/ˈpiːkənt/
Definition 1 of 2
Pro Tip 1/3Taste Intensity
Use 'piquant' to describe strong flavors that are noticeably sharp or spicy, not mild tastes. 
The piquant radish added a lively kick to the salad.
Pro Tip 2/3Positively Zesty
'Piquant' generally has a positive connotation when referring to food, indicating a pleasant spice level. 
The chef's piquant curry was a hit at the dinner party.
Pro Tip 3/3Sensory Appeal
Highlighting a 'piquant' taste can imply an appeal to the senses, suggesting an exciting dining experience. 
Guests were treated to a piquant pepper salsa that awakened their palates.