Grilled Blackberry Balsamic Grilled Chicken Salad

grilled blackberry balsamic chicken:

• 1.5 lbs chicken breast
• 1 cup blackberry mashed with fork
• 1/4 cup balsamic vinegar
• 1/3 cup avocado oil something high heat, or olive oil
• 1/2 TBSP mustard stoneground
• 1 tsp garlic minced
• 1/2 tsp salt or to taste
• 1/2 tsp black pepper or to taste

blackberry balsamic glaze:

• 1 cup blackberry
• 1/4 cup balsamic vinegar
• 1 tsp tapioca starch optional; see recipe

for the salad:

• salad greens
• 1 avocado removed from flesh and sliced, ripe, medium
• 4 oz feta cheese crumbled
• 1 lb asparagus grilled or roasted in oil and garlic salt
• walnuts
• blackberry